Respuesta :

alm22

Answer:

7a+6b+1

...............

shaha75

Answer:

7a+6b+1

Step-by-step explanation:

2a+3b+2+3a+5b-1+2a-2b=7a+6b+1

  • Combine like terms
  • Use this fact:

(+)×(+)=+ (-)×(-)=+

(+)×(-)=- (-)×(+)=-